Calculator



FIG. 1 is a left side elevational view of a calculator showing my newdesign;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a left perspective view thereof;

FIG. 4 is a back view thereof;

FIG. 5 is a left perspective view thereof showing the display; and,

FIG. 6 is a front elevational view thereof.

The ornamental design for a calculator, as shown and described.